Oracle XMLTable

General Information
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The Library is currently in the process of being upgraded from Oracle Database Version to Demos are being upgraded to reflect the new Container paradigm as well as EBR (Edition Based Redefinition) and may contain references to CDBs, PDBs, and other objects you may not be familiar with such as CDB_OBJECTS_AE: Welcome to 12c.
Purpose XMLQuery returns query results as XML. XMLTable returns results as relational data.
Create Schema
Create Demo Table conn uwclass/uwclass@pdbdev

CREATE TABLE person_data (
person_id   NUMBER(3),
person_data sys.XMLTYPE);

desc person_data
Load Demo Data INSERT INTO person_data
(person_id, person_data)
   <PDName>Daniel Morgan</PDName>

INSERT INTO person_data
(person_id, person_data)
   <PDName>Julian Dyke</PDName>

INSERT INTO person_data
(person_id, person_data)
   <PDName>Caleb Small</PDName>


set long 100000
col person_data format a60

SELECT * FROM person_data;
Simple XMLTABLE Query (with equals) SELECT <column_list>, XMLQuery (
'for $i IN <record_end_tag>
 where $i<item_end_tag> = <value>
 order by $i<item_end_tag>
 return $i<item_end_tag>
PASSING BY VALUE <xml_record_column>
RETURNING CONTENTS) <returning_column_alias>
FROM <table_name>;

Note: What is within the parentheses is case sensitive and you can not use Upper Case or InitCap for commands.
col column_value format a50

SELECT t.column_value
FROM person_data a,
    'for $root in $date
     where $root/PDRecord/PDName = "Daniel Morgan"
     return $root/PDRecord/PDDOB/text()'
  passing a.person_data AS "date") t;

Related Topics
XML Functions
XML Tables

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